Method and means for tracing designs



W. R. MANTELL IETHOD AND MEANS FOR TRACING DESIGNS March 22, 1932.

Filed March 21, 1929 2 Sheets-Sheet INVENTOR.

WALTER R. MANTELL 7&7)!

ATTORNEY.

.March 22, 1932. w, MANTELL 1,850,760

IETHOD AND MEANS FOR TRACING DESIGNS Filed March 21, 1929 2 Sheets-Sheet 2 [7&5 Fl0.6

JNVENTOR M/ALTER 'fi. MA/VTELL ATTORNEY.

Patented Mar. 22, 1932" UNlTED -STATES [PATENT mm i' WALTER 3. WELL, OF ST. LOUIS, MISSOURI IETHbD AND MEANS FOR TRACER G DBIGNS Application filed larch 21, 1929. Serial No. 348,925.

atives tracin sand other trans arencies and 0 all similar thmgs made by hand or otherwise which are susceptible of being shaded. One of the objects of this invention is to provide a method by which artistic shading effects may be applied to drawings or like.

designs in a simple and rapid manner, so as to reduce the time consumed in executing such shading.

Another object is to provide a method of applying shading to such designs, which may be varied to suit the subject treated.

. Another object is to provide such a method by means of which combinations of various types of shading may be applied.

Another object is to provide a method for. applying to a design or other sheet any speclal pattern or configuration in a simple and efiective manner. Further objects will appear from the following description, taken in connection with the accompanying drawings, in which- Figures 1 to 4, inclusive, illustrate successive steps in shading an illustrative drawing, in accordance with the method of this invention- Figure 5 is a view of a sheet of shading material mounted on a backing, in accordance with this invention;

Figure 6 is a section on line 6-6 of Figure 5; and

Figure 7 is a view illustrating another application of the method of this invention.

In accordance with this invention, the drawing or design is first completed more or less in outline and the shadingis then applied thereto. The shading material is prepared in the form of a very thin transparent sheet, upon which are printedor otherwise produced the cross-hate ing, stipple or other type of shading or configuration to be used.

A material which may be used for these transparent sheets is, what is well known as cellophane, which may be prepared in very thin sheets which are perfectly transparent.

These sheets are prepared with the various shading patterns -or other configurations upon them.

' The design sheet or the cellophane'sheet, or both, may then be coated with a suitable transparent adhesive, suchas rubber frisket cement, and the shading sheet is then applied to the design by pasting the same over the area upon which the shading is to appear.

The shading sheet need not originally be cut or iormed to the shape of the shaded area. It is first applied to the design and then, with the sheet adhering to the design, it is out along the outline of the area to be shaded and that part covering the unshaded areas is removed, leaving the shading sheet upon the design covering the proper area.

In order to obtain composite shading ef fects, successive shading sheets may be placed upon the same area, one over the other. As the sheets are transparent, the shading of the underneath sheet will show through the covering sheet and a composite efiect will be obtained. Parts of the main design may alsobe covered by the shading sheet and will show through those transparent sheets.

This process is illustrated in Figures 1 to 4, inclusive. Figure 1 represents an outline drawing, such as may be used'as a fashion illustration or the like and to which suitable shading is to be applied. It may be assumed, for instance, that shading is to be applied to the clothing of the figure and also to the background along lines 1 and 2. I

In carrying out the method, a fragment of a shading sheet 3 is suitably coated with adhesive and pasted over a portion of the design so as to cover the clothing of the figure as illustrated in Figure 2. At the same time a shading sheet 4 may be applied to. the background in a similar manner, as is also illustrated in Figure 2. These sheets are then cut by a sharp instrument, such as a knife, along the outlines of the shaded area, but the sheet 3 iscut along the. outlines of that part of the clothing which is to be shaded. The sheet 4,

is out along similar outlines; as, for instance,

2-1 1,aao,7eo I the line 1. Those arts of the sheets 3 and 4 r by a coating 8 of adhesive, which does not Erich are not to be shaded harden but remains tacky. These sheets ma lyinglover areas w are t en removed by sun 1y peeling the same from the design sheet. lllS leaves the sheets c 3 and 4 in the form shown in Figure 3. It

will be noted that the sheet 3 hasrbeen cut away from all unshaded areas and now covers only rtions of the coat of the fi re illustratedl The sheet 4 covers a pate of background of irregular outline. I

The shading of the background may now be further modified by applying a second shading sheet thereto. This first applied,

as described, to that general area of the de- 15 sign which will cover the area desired to be shaded by this second sheet. The cutting out process is then along the line 2, and the surplus of the sheet 5 is removed. This providesanarea of com- 2o 'te shading where the sheets 4 and 5 overap, surrounded by a margin of lighter shading where the sheet 4 alone is exposed to view. I As the sheets are perfectly transparent, the shadin lines of the sheet 4 are clearly seen at throug the sheet 5.

It will be seen that by this method shading effects of many kinds can be'easily and quick- *ly produced. A large area may be shaded by a simple method requiring no great 8 and, therefore, consummg very little time. Composite shading effects may easily be obtained. As the shading sheets are printed so that the elements thereof are accurately delineated, a perfectly uniform shading is obtained over the area to which a sheet is applied. Where small unshaded areas come. within a larger shaded area the shading may be obliterated with white ink or the like. In this way a great deal of time may be saved in uttmg in details.

his method of shading is particularly valuable in the preparation of such designs as are intended for reproduction by photographic processes. As'the shading sheets are per ectly transparent, the outline drawing shows clearly throu h the same; and the design when complete y shaded may be photographed and the complete design, including all theshading features, will e accurately re roduced on the photogra hs.

is method may be app ied in the same manner to transparencies, such as hotographic negatives, tracings and the li e, intended for reproduction by printing-through processes. The shading sheet may be applied directly to the transparency and its pattern will appear on the print as a part of the complete design. I

In order to provide for convenient and ra id work, the shading material may be provi ed in the form'illustrated in Figures 5 and 6, in which the shading sheet 6 ma be removably attached to a backing 7, suc as the Holland sheeting used for similar purposes. The'sheet is secured to the backing be prepared in this manner so that while she ing a drawing, the artist simpl tears ofl fragments of the sheet 6 accor mg to his needs. These fragments will be supplied with an adhesive coating and maybe applied directly to the design. Thus, the time consumed in applying the adhesive coating is saved. The sheet 7, furthermore, provides a cover sheet which keeps the adhesive coating 8 from drying out and maintains it at all times ready for use.

The term transparent sheet, as used herein, is to be construed as a sheet whose transparenc is such as to permit the reproduction again resorted to, this time y a p otographic process of underlying designs.

- This process is not limited to simple shading effects, but may be used for applying borders, special initial letters or other patterns to an underlyin sheet.

As illustrated in igure 7, borders of special design may be applied to the design sheet in accordance with this invention. The border 9is printed on a transparent sheet 10 which is applied to the design sheet as reviously described. A sheet is prepared by printing, or otherwise delineatin on the transparent sheet one or more bor er strips, with suitable corner devices 11, if desired. When one sheet has a number of border strips thereon, it may be perforated between strips, as indicated at 12, so as to facilitate separating the strips.

Special initial letters 13 may also be repared on transparent sheets to be used in a similar manner. These sheets, as well as the border sheets, neednot be neatly trimmed at their edges as these edges do not show on the photograph.

It will understood, of course, that while the method has been described as a unitary Ill Having thus described the invention, what is claimed is:

1. A device for shading designs, comprising, a shaded transparent sheet coated with adhesive and having removably attached thereto by such adhesive a cover sheet.

2. A device for shading designs, comprising, a backing sheet, and a shaded transparent sheet coated with adhesive and removably attached to said backing sheet.

3. A device for shading designs, comprising, a shaded transparent sheet coated with an adhesive and having means for maintainin? said adhesive in tacky condition.

11 testimony whereof I aflix my signature this 27th day of February, 1929.

WALTER R. MANTELL. 

